Chapter 8481 — Customs Tariff Headings

8481.20.00Valves for oleohydraulic or pneumatic transmissions

8481.30.00Check (nonreturn) valves

8481.40.00Safety or relief valves

8481.80.00Other appliances

8481.90.00Parts

Calculate exact duty for your shipment Not sure about classification? Ask the Tariff Assistant

Products classified under Tariff item 84.81

Apollo 38F Inline Pressure Reducing Valve

The Apollo 38F is a lead-free brass pressure-reducing valve designed for commercial water systems. It uses a fabric-reinforced diaphragm to precisely reduce high municipal water pressure to safe levels for building plumbing, ensuring consistent outlet pressure.

Aquatrol Stainless Steel Pressure Reducing Valve

The Aquatrol stainless steel pressure-reducing valve automatically lowers incoming water pressure to a safe, consistent level for residential plumbing. Its adjustable spring-loaded mechanism allows users to set the desired outlet pressure, protecting fixtures from damage.

ASCO 500 Series Solenoid Pressure Regulator

The ASCO 500 Series solenoid pressure regulator combines a solenoid pilot with pressure regulation for precise air pressure control in automation systems. While it has electronic command input, its primary function is pressure reduction, making it classifiable as a pressure-reducing valve.

Barksdale H2C Hydraulic Pressure Reducing Valve

The Barksdale H2C is a cartridge-style hydraulic pressure-reducing valve for mobile equipment, preset at 3000 psi with a direct-acting design. It inserts into manifolds to reduce hydraulic pressure, ensuring safe operation of downstream components.

Cash Acme UQR-2000 Universal Pressure Regulator

The Cash Acme UQR-2000 is a universal pressure regulator with a polymer seat for quiet operation and balanced design for stable pressure under flow changes. It is suitable for cold water lines up to 2-inch pipe, reducing incoming pressure to protect plumbing systems.

Fisher 99 Series Pressure Reducing Regulator

The Fisher 99 Series is a high-pressure natural gas regulator for commercial meter stations, reducing from 1000 psi to distribution pressures. Its spring-loaded diaphragm control ensures reliable pressure reduction for gas distribution systems.

Johnson Valves J70 Series Industrial PRV

The Johnson J70 is a direct-acting pressure-reducing valve for steam, air, and liquid service in industrial plants. It features stainless steel trim and reduces control pressure to pilot-operated levels, making it a general-purpose pressure-reducing appliance.

Nibco PCV-75 Plastic Pressure Reducing Valve

The Nibco PCV-75 is a PVC true union pressure-reducing valve for corrosive chemical and irrigation applications up to 150 psi. It features an adjustable knob for precise outlet control, making it suitable for plastic piping systems.

Parker H-Series High Flow Pressure Regulator

The Parker H-Series is a high-flow pressure regulator for pneumatic control systems, handling 5000 psi inlet with a balanced poppet design. It is used in factory automation to reduce air pressure to safe operating levels.

Spirax Sarco DR10 Direct Acting Pressure Regulator

The Spirax Sarco DR10 is a compact direct-acting pressure-reducing valve for steam up to 50 psig, used in laundry and humidification systems. It features a balanced safety valve design, ensuring consistent pressure reduction for steam applications.

Swagelok KPR Series Knob-Adjust Pressure Regulator

The Swagelok KPR is a knob-adjustable pressure regulator for high-purity gas systems, with 316L stainless construction and a metal diaphragm. It is used in analytical instrumentation to precisely reduce gas pressure.

Tescom ER5000 Electronic Pressure Regulator

The Tescom ER5000 combines electronic control with pressure regulation for precision gas handling in laboratories and testing. Despite its electronics, the primary function is pressure reduction, making it classifiable as a pressure-reducing valve.

T&S Brass B-59R Pressure Reducing Valve

The T&S Brass B-59R is a compact chrome-plated brass pressure regulator for commercial kitchen faucets and pre-rinse units. It protects low-pressure fixtures from main line surges, ensuring safe water pressure in food service environments.

Watts 25P Series Water Pressure Regulator

The Watts 25P is a bronze-bodied pressure-reducing valve for domestic water service, protecting fixtures from high pressure damage. It includes a bellville spring for accurate pressure control up to 300 psi inlet, ensuring consistent outlet pressure.

Zurn Wilkins 70XL Pressure Reducing Valve

The Zurn Wilkins 70XL is a high-capacity bronze pressure-reducing valve with gage ports for monitoring, used in multi-family housing water lines. It maintains constant outlet pressure against varying demand, ensuring safe water pressure in large buildings.

ASCO 8262 Series Redundant Solenoid Valve

A redundant solenoid valve ensuring fail-safe directional control in hydraulic safety circuits, with dual solenoids for emergency shutdown. It is designed for oleohydraulic transmission systems, classifying under tariff item 8481.20.00.

Bosch Rexroth 4WREE Series Proportional Directional Valve

A solenoid valve offering electrically proportional control for directional flow in hydraulic systems, with pilot-operated design for high pressures up to 350 bar. It is designed for oleohydraulic transmission systems, classifying under tariff item 8481.20.00.

Cam-Actuated Hydraulic Directional Control Valve

A manual valve using a cam mechanism for sequential operation in hydraulic presses and automation lines. It is a directional control valve for oleohydraulic transmission systems, ensuring reliable positioning, and classifies under tariff item 8481.20.00.

Cartridge-Type Hydraulic Valve

A cartridge-type hydraulic valve designed for insertion into compact manifold assemblies, combining directional, pressure, and flow control functions in a single unit. It is specifically engineered for oleohydraulic transmission systems in mobile equipment, making it classifiable under tariff item 8481.20.00.

Explosion-Proof Pneumatic Valve

An explosion-proof pneumatic valve certified for hazardous locations, designed for air transmission systems in oil and gas processing. Its intrinsically safe design prevents ignition, and it is specifically intended for pneumatic transmission applications, falling under tariff item 8481.20.00.

Foot Pedal Operated Hydraulic Valve for Lifts

A pedal-actuated manual directional valve for scissor lifts and aerial platforms, providing hands-free operation. It is designed for oleohydraulic transmission systems with a lockout feature, classifying under tariff item 8481.20.00.

Hydraulic Solenoid Valve for Industrial Presses

A solenoid-operated hydraulic valve designed to control fluid flow in oleohydraulic transmission systems of industrial presses. It precisely regulates the pressure and direction of oil flow to actuate cylinders, making it a transmission-specific valve under tariff item 8481.20.00.

Joystick Controlled Hydraulic Sectional Valve

A multi-section manual hydraulic valve bank operated by joystick for simultaneous control of multiple functions in loaders and tractors. It is a directional control valve for oleohydraulic transmission systems, falling under tariff item 8481.20.00.

Lever-Operated Hydraulic Directional Valve D03 Size

A compact D03 (NG6) size manual directional control valve with lever actuation for hydraulic circuits, providing 4/2 or 4/3 configurations. It is designed for oleohydraulic transmission systems and classifies under tariff item 8481.20.00.

Manual Directional Control Hydraulic Valve - 4-Way 3-Position

A manual hydraulic valve that controls the direction of fluid flow in oleohydraulic systems, featuring a 4-way, 3-position spool design operated by a lever. It is specifically designed for transmission systems, classifying under tariff item 8481.20.00.

Manual Spool Valve CETOP 5 Hydraulic

A standard CETOP 5 (NG10) interface manual spool valve for industrial hydraulic power units. It is compatible with ISO 4401 manifolds and designed for oleohydraulic transmission systems, classifying under tariff item 8481.20.00.

Pneumatic Directional Control Valve 5/2 Way

A 5/2-way pneumatic directional control valve that directs compressed air flow in pneumatic transmission systems for automation. It switches between two actuator positions using five ports, and is specifically designed for pneumatic transmission, falling under tariff item 8481.20.00.

Pneumatic Poppet Valve for Air Cylinders

A high-speed poppet valve designed for rapid air switching in pneumatic cylinder transmission systems. It provides tight sealing for repetitive industrial automation cycles and is specifically intended for pneumatic transmission, classifying under tariff item 8481.20.00.

Proportional Hydraulic Flow Control Valve

An electronically controlled proportional hydraulic valve for precise flow modulation in hydraulic transmission circuits of construction equipment. It varies oil flow proportionally to electrical input signals, making it a transmission-specific valve under tariff item 8481.20.00.

Servo-Proportional Pneumatic Valve

A high-response servo valve for precise pneumatic pressure control in robotic transmission systems. It provides sub-millisecond response for dynamic motion control and is specifically designed for pneumatic transmission, falling under tariff item 8481.20.00.

Brass Inline Check Valve 1/4 Inch

> A compact 1/4-inch brass inline check valve for refrigerant lines and compressed air systems under low pressure, with ball or poppet mechanism. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.

Brass Silent Check Valve 2 Inch

> A 2-inch brass silent check valve with cushioned disc closure to reduce water hammer in larger low-pressure water mains. It is a nonreturn valve for water distribution, classified under tariff item 8481.30.00.

Brass Swing Check Valve 1/2 Inch

> A 1/2-inch brass swing check valve designed to prevent backflow in low-pressure plumbing systems, featuring a hinged disc that swings open with forward flow and closes against reverse flow. It is a nonreturn valve, classified under tariff item 8481.30.00.

Bronze Horizontal Check Valve 3/8 Inch

> A 3/8-inch bronze horizontal inline check valve for fuel oil lines and low-pressure gas applications, oriented for horizontal piping. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.

Bronze Lift Check Valve 1 Inch

> A 1-inch bronze lift check valve where the disc lifts vertically in the flow direction and drops to seal against backflow, used in low-pressure air and water systems. It is a nonreturn valve, classified under tariff item 8481.30.00.

Bronze Spring Check Valve 3/4 Inch

> A spring-loaded check valve made primarily of bronze (a copper alloy), designed to automatically close via spring action to prevent reverse flow in water systems. It is a nonreturn valve for pipes and tanks, falling under tariff item 8481.30.00.

Copper Lift Check Valve 1 Inch

> A vertical lift check valve made of copper, with a plunger that lifts to allow flow and drops to seal against backflow in vertical piping. It is a nonreturn valve for tanks and pipes, classified under tariff item 8481.30.00.

Copper Spring Check Valve 3/4 Inch

> A 3/4-inch copper spring-loaded check valve for preventing reverse flow in hydronic heating systems and potable water pipes, using a spring to seat the poppet. It is a nonreturn valve, classified under tariff item 8481.30.00.

Copper Swing Check Valve 1/2 Inch

> A swing-type check valve made entirely of copper, featuring a hinged disc that allows fluid flow in one direction only and prevents backflow in plumbing systems. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.

Copper Threaded Check Valve 1-1/2 Inch

> A 1-1/2 inch copper threaded-end check valve for easy installation in low-pressure irrigation and washdown systems. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.

Copper Y-Pattern Check Valve 1-1/4 Inch

> A 1-1/4 inch copper Y-pattern check valve for angled flow in low-pressure steam and condensate return lines, minimizing pressure drop. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.

Industrial Copper Y-Type Check Valve 1-1/2 Inch

> A Y-pattern copper check valve for high-pressure industrial lines, with an angled flow path for minimal resistance. It is a nonreturn valve for pipes and tanks, classified under tariff item 8481.30.00.

Miniature Copper Check Valve for RO Systems

> A compact copper check valve (1/4 inch) for reverse osmosis water filtration units, preventing wastewater backflow into the membrane. It is a nonreturn valve for small pipe systems, classified under tariff item 8481.30.00.

Solder-End Copper Nonreturn Valve 2 Inch

> A solder-joint copper nonreturn valve for larger diameter pipes, using gravity or spring to block reverse flow in heating systems. It is a check valve for boilers and tanks, classified under tariff item 8481.30.00.

Threaded Copper Check Valve 1-1/4 Inch

> A threaded-end copper check valve preventing backflow in commercial plumbing, with a disc mechanism for quiet operation. It is a nonreturn valve for pipes and vats, classified under tariff item 8481.30.00.

ASME Certified Pressure Relief Valve

An ASME-certified pressure relief valve designed to automatically vent excess pressure from boilers and pressure vessels, preventing catastrophic failures. Its spring-loaded mechanism ensures precise set-point operation, making it a quintessential safety valve under tariff item 8481.40.00.

Cryogenic Relief Valve for LNG Tanks

A cryogenic relief valve engineered for LNG storage tanks, releasing boil-off gas during overpressure events at extremely low temperatures. Its safety-relief function aligns directly with tariff item 8481.40.00, which covers valves designed to protect pressure vessels.

Flanged Relief Valve for Pipeline Stations

A flanged safety valve for natural gas compressor stations and pipeline pressure regulation points, built to ANSI B16.5 standards. Its role in preventing overpressure in pipeline systems qualifies it as a safety or relief valve under tariff item 8481.40.00.

Full Lift Safety Valve for Steam Boilers

A full-lift pop-type safety valve that provides maximum discharge area for rapid steam relief from industrial boilers. Its dedicated safety function for boiler shells and pressure piping places it squarely under tariff item 8481.40.00.

High-Pressure Safety Valve for Hydraulic Systems

A high-pressure safety valve designed to limit maximum pressure in hydraulic power units and cylinders, preventing system failures. Its safety relief function for hydraulic tanks and pipes aligns with tariff item 8481.40.00.

Pilot-Operated Pressure Relief Valve

A pilot-operated pressure relief valve that uses a pilot mechanism for accurate set-point operation in large pressure vessels and pipelines. Its high-capacity safety relief function for industrial gas systems qualifies it under tariff item 8481.40.00.

Spring-Loaded Safety Valve for Air Compressors

A spring-loaded safety valve for air compressors that pops open at a predetermined pressure to vent excess air from compressor tanks. Its dedicated safety relief function for over-pressurization protection places it under tariff item 8481.40.00.

Stainless Steel Safety Valve for Chemical Tanks

A corrosion-resistant stainless steel safety valve for hazardous chemical storage tanks, discharging vapors or liquids during overpressure events. Its safety relief function for chemical processing tanks and vessels aligns with tariff item 8481.40.00.

Thermal Relief Valve for Hot Water Heaters

A thermal relief valve that relieves pressure buildup from thermal expansion in hot water storage tanks, preventing tank rupture. Its safety relief function for water heating systems and pressure vessels qualifies it under tariff item 8481.40.00.

Vacuum Relief Valve for Fuel Storage Tanks

A vacuum relief valve that prevents tank collapse by admitting air during vacuum conditions in underground fuel storage tanks. Its safety relief function for petroleum storage vats aligns with tariff item 8481.40.00.

American Standard Serin Centerset Lavatory Faucet

A copper-based centerset faucet for lavatory sinks, featuring two handles, hand-operated under 850 kPa pressure. It is a hand-operated appliance for sinks, classified under tariff item 8481.80.00 as an 'other appliance'.

American Standard Serin Tub/Shower Faucet

A single-control copper faucet for tub and shower, hand-operated with pressure under 850 kPa, featuring anti-scald technology. It is a hand-operated appliance for plumbing fixtures, falling under tariff item 8481.80.00 as an 'other appliance'.

Brass Gate Valve 3/4 Inch Copper Alloy Hand Operated

A hand-operated gate valve made from copper-based brass alloy, featuring a rising stem and handwheel to regulate water flow in fully open or fully closed positions. It is designed for use in pipe systems, making it an 'other appliance' under tariff item 8481.80.00.

Brass Globe Valve 1/2 Inch Handwheel Operated Copper

A precision copper globe valve with a handwheel for throttling flow control in water, gas, and heating systems, featuring a renewable disc and seat. It is a hand-operated appliance for pipes, falling under tariff item 8481.80.00 as an 'other appliance'.